DigiByte-Core/digibyte v9.26.0-rc7

DigiByte Core v9.26.0-rc7 DigiDollar Beta TESTNET ONLY

on GitHub

WARNING: This is a TESTNET-ONLY release. DO NOT use on mainnet.

Development Branch: https://github.com/DigiByte-Core/digibyte/tree/feature/digidollar-v1

Join the Developer Chat: https://app.gitter.im/#/room/#digidollar:gitter.im - Active development discussion happens here!

What's New in RC7

ERR (Emergency Redemption Ratio) Fixes

• Corrected ERR semantics - ERR now increases DD burn requirement, NOT reduces collateral return
• DCA/ERR use cached system metrics - Real-time calculation instead of stubs
• Enhanced ERR tier info - Better RPC output and minting protection during emergency
• Improved ERR display - Faster Qt update timer and clearer UI

Oracle Phase Two Infrastructure

• Multi-oracle consensus preparation - ValidatePhaseTwoBundle, CalculateConsensusPrice, IQR outlier filtering
• 10 testnet oracle keys - 1 active, 9 reserved for Phase Two activation

Wallet Restore Fixes

• Redeemed vaults fix - Prevent redeemed vaults from appearing redeemable after restore
• DD send history restore - Restore DD send transaction history during wallet rescan
• Vault tier derivation - Correct vault lock tier derivation for wallet restore

UI Improvements

• Filter DD addresses - DigiDollar addresses no longer appear in regular DGB Receive tab
• Cleaner DD Transactions - Removed unnecessary Refresh button

Tests & Documentation

• ERR test updates - Tests for correct DD burn semantics
• 3-node regtest test - Improved test with Qt/daemon fallback and correct formulas
• Unit test fixes - Corrected DD activation height and tier system tests
• Documentation updates - Updated architecture and explainer docs

Upgrade Notes

RC7 uses the same testnet9 network as RC6. No data migration required.

Simply download RC7 and replace your existing RC6 installation.

Key Features Since RC1 (Cumulative)

From RC6 - Network Reset & HD Keys

• New testnet9 network with fresh blockchain state
• Deterministic DigiDollar keys using HD derivation
• Tier derivation fixes for wallet restore
• UI improvements for Receive DD tab

From RC5 - Wallet & Validation Fixes

• Conflicted DD transactions handled properly
• Minimum mint amount rule with activation height
• Historical block validation optimization
• Cross-platform theming fixes

From RC4 - Network Reset & Core Fixes

• Fix Qt freeze from verbose logging
• Fix large DD amounts (8-byte CScriptNum)
• DigiDollarStatsIndex for network metrics
• Exact-amount redemptions

From RC3 - Wallet Safety Fixes

• DGB loss bug fixed with wallet-controlled change addresses
• Non-P2TR outputs allowed for change
• Windows 64-bit integer fixes

From RC2 - Core Transaction Fixes

• DD key persistence across wallet restarts
• Taproot signing fixed for transfers and redemptions
• UTXO scanning fixed for received DD tokens

What is DigiDollar?

DigiDollar is a USD-pegged stablecoin built natively into DigiByte. It uses an over-collateralized model where users lock DGB to mint DUSD at the current oracle price of DGB.

The world's first truly decentralized stablecoin native on a UTXO blockchain, enabling stable value transactions without centralized control.

DGB becomes the strategic reserve asset (21B max, only 2.23 DGB per person on Earth right now). Everything happens inside DigiByte Core wallet. You never give up control of your private keys. No centralized company, fund or pool. Pure decentralization.

Learn more: https://digibyte.io/digidollar

Current Status

• Single Oracle Testing - This beta uses one oracle node for price feeds. Production will use a decentralized oracle network.
• Testnet Only - All DGB and DUSD on testnet have no real value.

Quick Start Guide

Step 1: Download

Download the appropriate file for your platform from the Downloads section below and extract it.

Step 2: Create Config File

Create the config file in your platform's data directory with the following contents:

# DigiByte Configuration
# Global settings (apply to all networks)
testnet=1
server=1
txindex=1

# Testnet-specific settings
[test]
digidollar=1
digidollarstatsindex=1
algo=sha256d
addnode=oracle1.digibyte.io
rpcuser=digibyte
rpcpassword=digibyte123

Windows Setup

Step 1: Download and Install

Download digibyte-9.26.0-rc7-win64-setup.exe and install normally.

Step 2: First Launch (Testnet Mode)

You must launch in testnet mode. Open PowerShell and run:

& "C:\Program Files\DigiByte\digibyte-qt.exe" -testnet

The wallet will start in testnet mode and create the data directory automatically.

Step 3: Create Config File

1. Press Win + R, type %APPDATA%\DigiByte and press Enter
2. Create a new text file named digibyte.conf (remove the .txt extension)
3. Paste the config contents from Step 2 above and save

Step 4: Restart

Close the wallet and launch again from PowerShell:

& "C:\Program Files\DigiByte\digibyte-qt.exe" -testnet

Verify It's Working

• Title bar should say "DigiByte Core - Wallet [testnet9]"
• You should see a DigiDollar tab in the sidebar

Data Directory Reference

• Config: %APPDATA%\DigiByte\digibyte.conf
• Testnet data: %APPDATA%\DigiByte\testnet9\

macOS Setup

Step 1: Download and Extract

Download the .dmg file for your Mac and open it. Drag DigiByte-Qt to your Desktop.

Step 2: First Launch (Testnet Mode)

You must launch in testnet mode. Open Terminal and run:

cd ~/Desktop
./DigiByte-Qt.app/Contents/MacOS/DigiByte-Qt -testnet

If you get a security warning, right-click the app and select "Open", or run:

xattr -cr ~/Desktop/DigiByte-Qt.app

Then try the launch command again.

The wallet will start in testnet mode and create the data directory automatically.

Step 3: Create Config File

In Terminal:

mkdir -p ~/Library/Application\ Support/DigiByte
cat > ~/Library/Application\ Support/DigiByte/digibyte.conf << 'EOF'
# DigiByte Configuration
# Global settings (apply to all networks)
testnet=1
server=1
txindex=1

# Testnet-specific settings
[test]
digidollar=1
digidollarstatsindex=1
algo=sha256d
addnode=oracle1.digibyte.io
rpcuser=digibyte
rpcpassword=digibyte123
EOF

Step 4: Restart

Close the wallet and launch again from Terminal:

cd ~/Desktop
./DigiByte-Qt.app/Contents/MacOS/DigiByte-Qt -testnet

Verify It's Working

• Title bar should say "DigiByte Core - Wallet [testnet9]"
• You should see a DigiDollar tab in the sidebar

Data Directory Reference

• Config: ~/Library/Application Support/DigiByte/digibyte.conf
• Testnet data: ~/Library/Application Support/DigiByte/testnet9/

Ubuntu/Linux Setup

Data Directory

~/.digibyte/

Config file: ~/.digibyte/digibyte.conf

Testnet data stored in: ~/.digibyte/testnet9/

Steps:

1. Open Terminal and create config:

mkdir -p ~/.digibyte
cat > ~/.digibyte/digibyte.conf << 'EOF'
# DigiByte Configuration
# Global settings (apply to all networks)
testnet=1
server=1
txindex=1

# Testnet-specific settings
[test]
digidollar=1
digidollarstatsindex=1
algo=sha256d
addnode=oracle1.digibyte.io
rpcuser=digibyte
rpcpassword=digibyte123
EOF

1. Extract and run:

cd ~/Downloads
tar xzf digibyte-9.26.0-rc7-x86_64-linux-gnu.tar.gz
./digibyte-9.26.0-rc7/bin/digibyte-qt

Verify It's Working

• Title bar should say "DigiByte Core - Wallet [testnet9]"
• You should see a DigiDollar tab in the sidebar

Getting Testnet DGB

Option 1: GUI Console Mining

Mine testnet DGB directly using the GUI console:

1. Go to the Receive tab and create a new address (copy your dgbt1... address)
2. Go to Window > Console
3. Type: generatetoaddress 1 dgbt1qYOURADDRESSHERE
4. Press Enter to mine 1 block
5. Wait for 8 confirmations before spending mined coins (reduced from 100 in testnet9)

Option 2: CPU Miner (Recommended for Continuous Mining)

Use cpuminer to mine testnet DGB in the background. Make sure your wallet is running and synced first.

Download cpuminer: https://github.com/pooler/cpuminer

Build from source or download a release for your platform.

Run cpuminer:

Linux/macOS:

./minerd -a sha256d -o http://127.0.0.1:14025 -O digibyte:digibyte123 -t 4 --coinbase-addr=dgbt1qYOURADDRESSHERE

Windows (PowerShell):

.\minerd.exe -a sha256d -o http://127.0.0.1:14025 -O digibyte:digibyte123 -t 4 --coinbase-addr=dgbt1qYOURADDRESSHERE

Parameters explained:

• -a sha256d - Use SHA256d algorithm (matches algo=sha256d in config)
• -o http://127.0.0.1:14025 - RPC endpoint (testnet RPC port)
• -O digibyte:digibyte123 - RPC credentials from your config (user:password)
• -t 4 - Number of CPU threads to use (adjust based on your CPU)
• --coinbase-addr=dgbt1q... - Your testnet receive address

The miner will continuously mine blocks and send rewards to your address.

Testing DigiDollar Features

Once your wallet is synced and you have testnet DGB:

1. View Network Status - The DigiDollar Overview tab shows oracle price and network collateralization
2. Mint DUSD - Lock DGB as collateral to create DigiDollars
3. Send DUSD - Transfer DigiDollars to other testnet addresses
4. Redeem DUSD - Burn DigiDollars to unlock your DGB collateral (full position only)
5. View History - New DD Transactions tab shows complete transaction history

Network Information

Fork Schedule (Testnet9)

Emission Schedule (Testnet9)

Troubleshooting

"DigiDollar tab not appearing"

• Verify digidollar=1 is under [test] section in config
• Verify testnet=1 is at the top of config (not under any section)
• Restart the wallet after config changes

"Not connecting to network"

• Check your firewall allows port 12031
• Verify addnode=oracle1.digibyte.io is under [test] in config

"Oracle price shows 0 or N/A"

• Wait for sync to complete
• The oracle broadcasts price updates every few minutes
• Check Window > Console: getoracleprice

"Mining not working"

• Ensure algo=sha256d is in your config under [test]
• SHA256d is recommended for fastest CPU mining

"Transaction fee too high"

• DigiDollar transactions require 0.1 DGB minimum fee - this is expected
• This ensures reliable network propagation

Downloads

Feedback & Community

Please report issues and feedback to help us prepare for mainnet launch.

• Developer Chat (Gitter): https://app.gitter.im/#/room/#digidollar:gitter.im
• GitHub Issues: https://github.com/DigiByte-Core/digibyte/issues